. The American journal of tropical medicine. as intestinalis Strongyloides stercoralis Mycetoma Total of cases 1106 Diagram A shows graphically the relative numbers of thecommon reportable diseases. MALARIA The most common disease hsted is malaria. Although thelaboratory of the State Department of Health and other healthlaboratories in the state are prepared at all times to examinesmears of blood for malaria, comparatively few such specimensare sent them for exmination. As an unfortunate consequencethe state records do not show in what proportion of cases thediagnosis was confirmed by finding
. The American journal of tropical medicine. as intestinalis Strongyloides stercoralis Mycetoma Total of cases 1106 Diagram A shows graphically the relative numbers of thecommon reportable diseases. MALARIA The most common disease hsted is malaria. Although thelaboratory of the State Department of Health and other healthlaboratories in the state are prepared at all times to examinesmears of blood for malaria, comparatively few such specimensare sent them for exmination. As an unfortunate consequencethe state records do not show in what proportion of cases thediagnosis was confirmed by finding parasites in the blood. Thehospital records, too, are deficient in this respect in many in-stances and, in others, plasmodia were searched for but notfound. TROPICAL DISEASES IN MASSACHUSETTS 499 In a considerable number of instances in which parasites werefound the kind of Plasmodium seen is not recorded. It maybe inferred, however, with approximate accuracy that in suchinstances it was the tertian parasite which was seen. MALARIA414 oases. UNCINARIASIS33 oases Diagram A. Showing relative frequency in Massachusetts of common report-able diseases based on state and hospital data. A^ialysis of laboratory findings in hospital cases Tertian 47l Unqualified 31J Subtertian 11 Quartian 3 Looked for but not found 30 Doubtful 6 No notes 42 Total of hospital cases 170 The overwhelming majority of cases of malaria is attributableto the tertian parasite. There were a few cases of subtertianinfection and the quartian Plasmodium was found rarely. 500 GEORGE CHEEVER SHATTUCK The sources of malaria in Massachusetts can not be veryaccurately traced from the data in hand because neither theplace of birth nor that of residence at the time of admission to ahospital give clear evidence of the source of infection. Data from Hospital RecordsResidence at time of admission to hospitalIn or near Boston 57 CD Other parts of Massachusetts 11 ^ Other parts of New England 2 Southern states 2 U. S. Naval Ho
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttropica, bookyear1921
